Lock-valve.



M. J. AUSTIN.

LOCK VALVE. APPLIOATION FILED AUG. 29, 1910.

Patented Feb. 21, 1911.

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MANDLEY J. AUSTIN, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF TO GEORGE E. BOORMAN, OF BUFFALO, NEW YORK.

LOCK-VALVE.

Specification of Letters Patent.

Application filed August 29, 1910.

Patented Feb. 21, 1911.

Serial No. 579,500.

To all whom "it may concern:

Be it known that I, MANDLEY J. AUsTIN, a citizen of the United States, and resident of Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Lock-Valves, of which the following is a specification.

My invention relates to improvements in look valves, and it has for its primary ob ject the provision of a valve of this type which is particularly designed for use in automobiles for shutting off the flow or feed of gasolene to the carburcter, it being adapted to be placed between the gasolene feed chamber and the carbureter, and when closed, to be locked so that persons intending to use the automobile without authority, or stealing the same will be prevented from running it for any distance, as the very small quantity of gasolene which may be in the carbureter will be consumed after running about 100 feet.

Another object of my invention is the production of a lock valve of this type which is so constructed that a portion of the looking mechanism thereof will be within convenient reach of the operator; also the pro vision of a valve that can be used in other places where it is desirable to control the supply or feed of fluids or gases.

A still further object is the production of a valve of this kind which is simple in construction, easy to manipulate and which can be manipulated only by the person in possession of the key specially designed for the particular valve in use.

To these ends the invention consists in the construction, arrangement, and combination of parts to be hereinafter described and particularly pointed out in the subjoined claims.

In the drawings,-Figure 1 is a central vertical section through the complete valve showing the same in locked position. Fig. 2 is asimilar section showing the valve in unlocked or open position. Fig. 3 is a plan view of the valve and a portion of the floor, seat, or other part of an automobile to which the upper end of the valve is secured. Fig. 4 is a horizontal section taken through the casing above the coil spring. Fig. 5 is a detaohed perspective view of the detent spring by means of which the valve is locked in closed posit-ion.

Referring now to the drawings in detail, like letters of reference refer to like parts in the several figures.

A represents the valve-body proper having a passage or for the gasolene or other liquid or for the gas, as the case may be, the opposite ends of said valve-body being in ternally threaded, as at a for application thereto of supply or feed pipes. At the upper end of the valve-body is a stutling box B which is externally threaded, as at 7), and in the said valve-body is arranged for vertical sliding movement the valve proper C, it having a valve stem 0 extending through the stuffing box B, to the upper end of which a short sleeve D is threaded or otherwise attached as shown at (Z Figs. 1 and 2. This sleeve is closed at its upper end and has a keyhole E formed in said end through which a key 6 of suitable formation is adapted to be inserted. Surrounding said sleeve D with its upper end and threaded onto the externally threaded portion of the stuff ing-box B with its lower end, is a suitable casing F which may be of any desired formation and of the required length to extend to within convenient reach of the operator, said casing having preferably an outstanding flange f at its upper end and extending through the floor G or some other part of the automobile, the casing being secured at its upper end by means of screws f When in normal or unlocked position, the short sleeve D extends out through the upper end of the casing F, as shown in Fig. 2' but when the valve is closed and locked, the upper end of the sleeve is preferably flush with the flange f of the casing, as shown in Fig. 1, said sleeve being held in locked position by a detent spring H fastened at its lower'end to the casing F and extending up into the sleeve D to a point within convenient reach of the key 6, said detent spring having its upper end off-set, as at h, to provide a portion adapted to co-act with said key and at a point between said off-set portion and its lower end, a lock lip 7L is formed having a beveled face h for a purpose to be presently described. Said lock lip is adapted to enter an opening I formed in the sleeve D and thus lock said sleeve, the valve stem 0 and the valve 0 in closed position.

In order that the key hole E in the sleeve D be retained'in alinement with the detent spring H, I groove the casing F internally, as at J, and provide the sleeve D with a projection K which fits into said groove, said groove being disposed vertically so that the sleeve D may rise and lower within the casing. V

In order that the sleeve D maybe removed from the valve stem 0, the projection is preferably in the form of a screw threadedinto said sleeve so that the projection may be removed from the sleeve through an open mg L formed in the casing. Surroundlng the valve stem 0 is a coil spring M bearing with its lower endagainst the top of the stufling box B and with its upper end against a collar N on said stem which collar is held r in fixed position by a pin n passing through said valve stem,said spring serving to raise thevalve C and pro ect the short sleeve D from its casing after the key 6 has disengaged the lock lip 7L of the detent spring from the opening I in said sleeve.

The normal posltlon of the parts 1s shown in Fig. l of. the drawings, the valve being open to permit the feeding of gasolene to the carbureter.

off the flow of the gasolene, it is simply When it is desired to shut necessary to depress the sleeve D which,

through its connection .with the. valve 6' causes the latter to be moved into closed position shown in Fig. 1, and as soon as the lower end of the sleeve D engages the lock lip 72, of the detent spring H, said spring is deflected inward and remains in such position until the opening Iin said sleeve is brought in line with said lock-lip whereupon said lip immediately enters said opening due to the fact that the detent spring is permit ted to return to normal position.

WVhen the valve is closed, as shown in Fig] 1, the spring M is compressed so that upon' insertion of the key 6 into the key-hole E at the top of the sleeve D, and the turning of the same, it engages the off-set portion of thedetent spring, deflects the same tomove the lock lip 72, thereof out of the opening I I claim is,

1. A look valve comprising a valve casing A having a'passage, a slide valve to open and V valve extending through said valve casing, a

close said passage, a valve stem on said slide sleeve at the upper endof said valve stem movable therewith, means to lock said sleeve at the end of its movements in one d rection,

signature in the and means to open said valve and move said sleeve in the other direction.

2. A look valve comprising a valve casing having a passage, a slide valve to open and close said passage, a valve stem for said slide valve extending through said valve casing, a casing extending upward from said valve casing through which said valve stem extends, a collar on said valve stem, a spring surrounding said valve stem between said collar and said valve casing, a sleeve slidable in the casing secured to said valve casing and itself attached to said valve stem, and means to lock said sleeve in depressed position within said second-mentioned casing.

3. A lock valve comprising a valve casing having a stuffing box and a passage, a slide valve in said casing to open and close said passage, a valve stem secured to said valve and extending through said stufiing box, a cylindrical casing secured to said valve casing and surrounding said valve stem, a sleeve surrounding the upper end of said valve stem having its upper end closed and being s1idable within said cylindrical casing, said sleeve having a key hole at its upper end, locking means engaging said sleeve to hold the same in its innermost position, said locking meansbeing adapted to be engaged by a key inserted through said key-hole, and a spring for causing said slide valve to be opened and said sleeve to'be projected when said locking means is actuated.

4. A lock-valve comprising a valve having a slide valve therein and a valve stem projecting therefrom, a cylindrical casing surrounding said valve stem and having a longitudinal internal groove, a sleeve at the outer end of said valve stem having a projection entering said groove, an opening between its ends and a key-hole at its upper end, a detent spring fastened to said cylindrical casing and provided with a lock lip adapted to enter the opening in said sleeve, said detent spring beingadapted to be actuated by a key inserted through said key hole, a spring surrounding said valve stem and acting to move the same outward when said detent spring is actuated, said spring moving outward with the valve stem and said slide valve being drawn into open position during the outward movement thereof. In testimony whereof, I have aflixed my presence of two subscribing witnesses. c MANDLEY J. AUSTIN.

Witnesses:

EMIL NEUHART, Gno. E. BOORMAN. 

